#!/usr/bin/env bash
#
# @license Apache-2.0
#
# Copyright (c) 2017 The Stdlib Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Prints the median commit message length.

# Determine root directory:
root="$(git rev-parse --show-toplevel)"

# Define the path to a utility to compute the median:
median="${root}/tools/awk/median.awk"

# * `git log`
#   - Get commit messages
# * `awk '{}'`
#   - Compute the message length.
# * `sort -n`
#   - Sort in numeric order.
# * `${median}`
#   - Compute the median.
git log --format=format:"%s" | awk '{print length($0)}' | sort -n | "${median}"
